Sucker rod wiper



June 20, 1939- J w. O'DELL 2,1.63,07

suoKER ROD WIPER f Filed March l2, 1938 JOHN W. O' DELL INVENTOR y QW.

A7TORNEY Patented June i), 1.939 i UNITED STATES -PATleiNTI 4or-'Ficls smlfllm Jllil W. ODell, Oldale, Calif. Application 'March 12, 1938, Serial No. 195,4 84

3 claims. (ci. iss-14) 'I'he object .of the invention is to provide a placed over the upper end of the rod and gently sucker rod wiper which will not be damaged .by tapped to 3a firm bearing, .it will remain in place, engagement with the pump -in pulling the last as the rod boxes pas's through and expand openstand of sucker rods. Y ing' I8 but will be disengaged without damage if In pumping oil wells it becomes necessary at l therrapid withdrawal of the pump causes it to 5v times to withdraw the sucker rods by which the strike the lower end 23 of the lower retaining pump is actuated.' If, as is often the case, the oil ring. which is being produced is heavy and viscous, I claim as my invention: much oil adheres to the rods as they come to '1 i sucker rod wiper comprising: a body l0 the Surface and Creates a nuisance vbv being member having a'bore therethrough adapted to 10 blown Onto the Operators and draining 0n the permit the passage of sucker rod boxes; a wiping devise 13001'. It is therefore Common Practice t0 element attached to said body, said element being Previde a wiping means by which this eXCeSS Oil expansible to permit said boxes to pass and con- ,S Caused t0 110W beek into the tubing as the rod tractile to wipe the surface of said rods between String is Pulled. A said boxes; a supporting member arranged to be 1J The Wipers heretOfOre used have had the dis-V fastened within the upper end of a pump tubing advantage that they are arranged t0 be Screwed string, and means for retaining said body mem- 4 firmly into the tubing head and are Seriously ber in said supporting member when said boxes damaged 0r ldestroyed if the Pump is drawn pass through said wiping element and for re- OI'Cibiy against theln- This ilnPOSes 0n the 0P- .leasing said body member from said supporting 20l eratur the necessity 0f drawing the last Stand member when the lower end of said body member ifA tubing Very Slowly and Carefully. is engaged by an object too large to pass through In my improved design the wiping element iS A said bore, said means consisting of mating, downretained in the tubing head with suiiicient force wardly converging faces of solid. metal formed to cause it `to pass over the rod boxes but is within the upper endY of said supporting member 25 Capable 0f detaehing. itse1f and riding up ontop and on the lower end of said body member. of the pump without being damaged. 2. A sucker rod wiper comprising a cylindrical Inthe attached drawing, the figure illustrates aj sleeve internally threaded' at each end; an expreferred form of the invention in vertical center pansible wipingy ring fixed within said sleeve; ran .o section. upper and a lower retaining ring screwed into 30 Referring to the iigure, I0 .represents a portion the ends of said sleeve and engaging the` ends of of a Vcollar or other tting on the upper end of the l said wiping ring; a nozzle projected downwardly tubing. Into this collar is screwed a sleeve Il from said lower retaining ring, said nozzle being which, in this form, is tapered internally as at I2. externally tapered, and a supporting ring adapted The wiper proper consists of four parts: a to screw into a tubing collar and internally sleeve I3, a rubber wiping element I4, and two tapered'to engage the external taper of said retaining rings I5 and I6. The wiping element, nozzle. which is formed of rubber, is externally grooved` 3. In a .sucker rod wiper having a resilient as at I1 to increase its expansiblity. The openwiping ring within a metallic body and a suping ll-must be ofsuch dimensions as will cause porting member adapted to be attached to the 40 the element vto contract around the sucker rod upperend of the well tubing, a projection from and wipe orf the oil, and its expansibility must the lower end of said body having an externally y be such as to permit the rod boxes to pass through tapered face, and a seat formed in the upper without damaging it. The openings I9 and 20 end of said supporting member mating with said must of course be sudiciently largerto permit the externally tapered face, said face'and said seat 45 `.boxes to pass through. being smooth and having a degree of taper suit- 'Ihe lower end of the lower retaining ring is able for iirmly but releasably wedging said body externally tapered as at 2l and may desirably within said supporting member. be grooved as at 22 to reduce the area of 'contact u with internal taper I2. When 'this fltting'is JOHN W. ODEIL. 50 

